using System.Collections;
using Ln.Fram.Core.Enums;

namespace Ln.Fram.Core.Helper;

public static class MimeHelper
{
	// 通过自己定义一个静态类
	// 将所有的Content Type都扔进去吧

	// 调用的时候直接调用静态方法即可。


	public static List<string> ImageType { get; set; } = new List<string>
			{
					".jpg",".png",".jpeg"
			};

	private static Hashtable _mimeMappingTable;

	private static void AddMimeMapping(string extension, string MimeType)
	{
		_mimeMappingTable.Add(extension, MimeType);
	}

	public static string GetMimeMapping(string FileName)
	{
		string text = null!;
		int num = FileName.LastIndexOf('.');
		if (0 < num && num > FileName.LastIndexOf('\\'))
		{
			text = (string)_mimeMappingTable[FileName.Substring(num)]!;
		}
		if (text == null)
		{
			text = (string)_mimeMappingTable[".*"]!;
		}
		return text;
	}

	public static FileTypeEnum GetFileType(string fileName)
	{
		var extension = Path.GetExtension(fileName);
		if (ImageType.Contains(extension.ToLower()))
			return FileTypeEnum.Image;
		return FileTypeEnum.File;


	}

	static MimeHelper()
	{
		_mimeMappingTable = new Hashtable(190, StringComparer.CurrentCultureIgnoreCase);
		AddMimeMapping(".323", "text/h323");
		AddMimeMapping(".asx", "video/x-ms-asf");
		AddMimeMapping(".acx", "application/internet-property-stream");
		AddMimeMapping(".ai", "application/postscript");
		AddMimeMapping(".aif", "audio/x-aiff");
		AddMimeMapping(".aiff", "audio/aiff");
		AddMimeMapping(".axs", "application/olescript");
		AddMimeMapping(".aifc", "audio/aiff");
		AddMimeMapping(".asr", "video/x-ms-asf");
		AddMimeMapping(".avi", "video/x-msvideo");
		AddMimeMapping(".asf", "video/x-ms-asf");
		AddMimeMapping(".au", "audio/basic");
		AddMimeMapping(".application", "application/x-ms-application");
		AddMimeMapping(".bin", "application/octet-stream");
		AddMimeMapping(".bas", "text/plain");
		AddMimeMapping(".bcpio", "application/x-bcpio");
		AddMimeMapping(".bmp", "image/bmp");
		AddMimeMapping(".cdf", "application/x-cdf");
		AddMimeMapping(".cat", "application/vndms-pkiseccat");
		AddMimeMapping(".crt", "application/x-x509-ca-cert");
		AddMimeMapping(".c", "text/plain");
		AddMimeMapping(".css", "text/css");
		AddMimeMapping(".cer", "application/x-x509-ca-cert");
		AddMimeMapping(".crl", "application/pkix-crl");
		AddMimeMapping(".cmx", "image/x-cmx");
		AddMimeMapping(".csh", "application/x-csh");
		AddMimeMapping(".cod", "image/cis-cod");
		AddMimeMapping(".cpio", "application/x-cpio");
		AddMimeMapping(".clp", "application/x-msclip");
		AddMimeMapping(".crd", "application/x-mscardfile");
		AddMimeMapping(".deploy", "application/octet-stream");
		AddMimeMapping(".dll", "application/x-msdownload");
		AddMimeMapping(".dot", "application/msword");
		AddMimeMapping(".doc", "application/msword");
		AddMimeMapping(".dvi", "application/x-dvi");
		AddMimeMapping(".dir", "application/x-director");
		AddMimeMapping(".dxr", "application/x-director");
		AddMimeMapping(".der", "application/x-x509-ca-cert");
		AddMimeMapping(".dib", "image/bmp");
		AddMimeMapping(".dcr", "application/x-director");
		AddMimeMapping(".disco", "text/xml");
		AddMimeMapping(".exe", "application/octet-stream");
		AddMimeMapping(".etx", "text/x-setext");
		AddMimeMapping(".evy", "application/envoy");
		AddMimeMapping(".eml", "message/rfc822");
		AddMimeMapping(".eps", "application/postscript");
		AddMimeMapping(".flr", "x-world/x-vrml");
		AddMimeMapping(".fif", "application/fractals");
		AddMimeMapping(".gtar", "application/x-gtar");
		AddMimeMapping(".gif", "image/gif");
		AddMimeMapping(".gz", "application/x-gzip");
		AddMimeMapping(".hta", "application/hta");
		AddMimeMapping(".htc", "text/x-component");
		AddMimeMapping(".htt", "text/webviewhtml");
		AddMimeMapping(".h", "text/plain");
		AddMimeMapping(".hdf", "application/x-hdf");
		AddMimeMapping(".hlp", "application/winhlp");
		AddMimeMapping(".html", "text/html");
		AddMimeMapping(".htm", "text/html");
		AddMimeMapping(".hqx", "application/mac-binhex40");
		AddMimeMapping(".isp", "application/x-internet-signup");
		AddMimeMapping(".iii", "application/x-iphone");
		AddMimeMapping(".ief", "image/ief");
		AddMimeMapping(".ivf", "video/x-ivf");
		AddMimeMapping(".ins", "application/x-internet-signup");
		AddMimeMapping(".ico", "image/x-icon");
		AddMimeMapping(".jpg", "image/jpeg");
		AddMimeMapping(".jfif", "image/pjpeg");
		AddMimeMapping(".jpe", "image/jpeg");
		AddMimeMapping(".jpeg", "image/jpeg");
		AddMimeMapping(".js", "application/x-javascript");
		AddMimeMapping(".lsx", "video/x-la-asf");
		AddMimeMapping(".latex", "application/x-latex");
		AddMimeMapping(".lsf", "video/x-la-asf");
		AddMimeMapping(".manifest", "application/x-ms-manifest");
		AddMimeMapping(".mhtml", "message/rfc822");
		AddMimeMapping(".mny", "application/x-msmoney");
		AddMimeMapping(".mht", "message/rfc822");
		AddMimeMapping(".mid", "audio/mid");
		AddMimeMapping(".mpv2", "video/mpeg");
		AddMimeMapping(".man", "application/x-troff-man");
		AddMimeMapping(".mvb", "application/x-msmediaview");
		AddMimeMapping(".mpeg", "video/mpeg");
		AddMimeMapping(".m3u", "audio/x-mpegurl");
		AddMimeMapping(".mdb", "application/x-msaccess");
		AddMimeMapping(".mpp", "application/vnd.ms-project");
		AddMimeMapping(".m1v", "video/mpeg");
		AddMimeMapping(".mpa", "video/mpeg");
		AddMimeMapping(".me", "application/x-troff-me");
		AddMimeMapping(".m13", "application/x-msmediaview");
		AddMimeMapping(".movie", "video/x-sgi-movie");
		AddMimeMapping(".m14", "application/x-msmediaview");
		AddMimeMapping(".mpe", "video/mpeg");
		AddMimeMapping(".mp2", "video/mpeg");
		AddMimeMapping(".mov", "video/quicktime");
		AddMimeMapping(".mp3", "audio/mpeg");
		AddMimeMapping(".mpg", "video/mpeg");
		AddMimeMapping(".ms", "application/x-troff-ms");
		AddMimeMapping(".nc", "application/x-netcdf");
		AddMimeMapping(".nws", "message/rfc822");
		AddMimeMapping(".oda", "application/oda");
		AddMimeMapping(".ods", "application/oleobject");
		AddMimeMapping(".pmc", "application/x-perfmon");
		AddMimeMapping(".p7r", "application/x-pkcs7-certreqresp");
		AddMimeMapping(".p7b", "application/x-pkcs7-certificates");
		AddMimeMapping(".p7s", "application/pkcs7-signature");
		AddMimeMapping(".pmw", "application/x-perfmon");
		AddMimeMapping(".ps", "application/postscript");
		AddMimeMapping(".p7c", "application/pkcs7-mime");
		AddMimeMapping(".pbm", "image/x-portable-bitmap");
		AddMimeMapping(".ppm", "image/x-portable-pixmap");
		AddMimeMapping(".pub", "application/x-mspublisher");
		AddMimeMapping(".pnm", "image/x-portable-anymap");
		AddMimeMapping(".png", "image/png");
		AddMimeMapping(".pml", "application/x-perfmon");
		AddMimeMapping(".p10", "application/pkcs10");
		AddMimeMapping(".pfx", "application/x-pkcs12");
		AddMimeMapping(".p12", "application/x-pkcs12");
		AddMimeMapping(".pdf", "application/pdf");
		AddMimeMapping(".pps", "application/vnd.ms-powerpoint");
		AddMimeMapping(".p7m", "application/pkcs7-mime");
		AddMimeMapping(".pko", "application/vndms-pkipko");
		AddMimeMapping(".ppt", "application/vnd.ms-powerpoint");
		AddMimeMapping(".pmr", "application/x-perfmon");
		AddMimeMapping(".pma", "application/x-perfmon");
		AddMimeMapping(".pot", "application/vnd.ms-powerpoint");
		AddMimeMapping(".prf", "application/pics-rules");
		AddMimeMapping(".pgm", "image/x-portable-graymap");
		AddMimeMapping(".qt", "video/quicktime");
		AddMimeMapping(".ra", "audio/x-pn-realaudio");
		AddMimeMapping(".rgb", "image/x-rgb");
		AddMimeMapping(".ram", "audio/x-pn-realaudio");
		AddMimeMapping(".rmi", "audio/mid");
		AddMimeMapping(".ras", "image/x-cmu-raster");
		AddMimeMapping(".roff", "application/x-troff");
		AddMimeMapping(".rtf", "application/rtf");
		AddMimeMapping(".rtx", "text/richtext");
		AddMimeMapping(".sv4crc", "application/x-sv4crc");
		AddMimeMapping(".spc", "application/x-pkcs7-certificates");
		AddMimeMapping(".setreg", "application/set-registration-initiation");
		AddMimeMapping(".snd", "audio/basic");
		AddMimeMapping(".stl", "application/vndms-pkistl");
		AddMimeMapping(".setpay", "application/set-payment-initiation");
		AddMimeMapping(".stm", "text/html");
		AddMimeMapping(".shar", "application/x-shar");
		AddMimeMapping(".sh", "application/x-sh");
		AddMimeMapping(".sit", "application/x-stuffit");
		AddMimeMapping(".spl", "application/futuresplash");
		AddMimeMapping(".sct", "text/scriptlet");
		AddMimeMapping(".scd", "application/x-msschedule");
		AddMimeMapping(".sst", "application/vndms-pkicertstore");
		AddMimeMapping(".src", "application/x-wais-source");
		AddMimeMapping(".sv4cpio", "application/x-sv4cpio");
		AddMimeMapping(".tex", "application/x-tex");
		AddMimeMapping(".tgz", "application/x-compressed");
		AddMimeMapping(".t", "application/x-troff");
		AddMimeMapping(".tar", "application/x-tar");
		AddMimeMapping(".tr", "application/x-troff");
		AddMimeMapping(".tif", "image/tiff");
		AddMimeMapping(".txt", "text/plain");
		AddMimeMapping(".texinfo", "application/x-texinfo");
		AddMimeMapping(".trm", "application/x-msterminal");
		AddMimeMapping(".tiff", "image/tiff");
		AddMimeMapping(".tcl", "application/x-tcl");
		AddMimeMapping(".texi", "application/x-texinfo");
		AddMimeMapping(".tsv", "text/tab-separated-values");
		AddMimeMapping(".ustar", "application/x-ustar");
		AddMimeMapping(".uls", "text/iuls");
		AddMimeMapping(".vcf", "text/x-vcard");
		AddMimeMapping(".wps", "application/vnd.ms-works");
		AddMimeMapping(".wav", "audio/wav");
		AddMimeMapping(".wrz", "x-world/x-vrml");
		AddMimeMapping(".wri", "application/x-mswrite");
		AddMimeMapping(".wks", "application/vnd.ms-works");
		AddMimeMapping(".wmf", "application/x-msmetafile");
		AddMimeMapping(".wcm", "application/vnd.ms-works");
		AddMimeMapping(".wrl", "x-world/x-vrml");
		AddMimeMapping(".wdb", "application/vnd.ms-works");
		AddMimeMapping(".wsdl", "text/xml");
		AddMimeMapping(".xap", "application/x-silverlight-app");
		AddMimeMapping(".xml", "text/xml");
		AddMimeMapping(".xlm", "application/vnd.ms-excel");
		AddMimeMapping(".xaf", "x-world/x-vrml");
		AddMimeMapping(".xla", "application/vnd.ms-excel");
		AddMimeMapping(".xls", "application/vnd.ms-excel");
		AddMimeMapping(".xlsx", "application/vnd.ms-excel");
		AddMimeMapping(".xof", "x-world/x-vrml");
		AddMimeMapping(".xlt", "application/vnd.ms-excel");
		AddMimeMapping(".xlc", "application/vnd.ms-excel");
		AddMimeMapping(".xsl", "text/xml");
		AddMimeMapping(".xbm", "image/x-xbitmap");
		AddMimeMapping(".xlw", "application/vnd.ms-excel");
		AddMimeMapping(".xpm", "image/x-xpixmap");
		AddMimeMapping(".xwd", "image/x-xwindowdump");
		AddMimeMapping(".xsd", "text/xml");
		AddMimeMapping(".z", "application/x-compress");
		AddMimeMapping(".zip", "application/x-zip-compressed");
		AddMimeMapping(".*", "application/octet-stream");
	}
}
